CVE-2025-61146: saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c

Medium severity · published Feb 23, 2026

CVE-2025-61146

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c

4.0

CVSS

0.1%

EPSS

On KEV

Description

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack vector

Local

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.1% · higher than 3% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Libsixel · Saitoha

before 1.8.7 · source: NVD

Affected product

Libsixel

Saitoha

All Libsixel CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-61146

CVE.org

https://www.cve.org/CVERecord?id=CVE-2025-61146

Third Party Advisory

https://gist.github.com/optionGo/1100e5be05c5558501a95f5e99160584

Patch

https://github.com/saitoha/libsixel/commit/e0ba6685262a3679cc5b9009c0c5b7dc8a3f262e

Issue Tracking

https://github.com/saitoha/libsixel/issues/207